CN203145084U - Electric-shock-resistant safety device of excavator - Google Patents
Electric-shock-resistant safety device of excavator Download PDFInfo
- Publication number
- CN203145084U CN203145084U CN 201320108648 CN201320108648U CN203145084U CN 203145084 U CN203145084 U CN 203145084U CN 201320108648 CN201320108648 CN 201320108648 CN 201320108648 U CN201320108648 U CN 201320108648U CN 203145084 U CN203145084 U CN 203145084U
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- excavator
- warning device
- electromagnetic valve
- electric
- shock
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Abstract
The utility model discloses an electric-shock-resistant safety device of an excavator and belongs to the technical field of excavator safety devices. The electric-shock-resistant safety device of the excavator comprises a controller, a pilot pump, a main pump, an electricity-approaching early-warning device, a warning device, a locking switch and an electromagnetic valve, wherein the controller, the pilot pump and the main pump are installed in a cab, the electricity-approaching early-warning device is further installed in front of a bucket rod of the excavator, the warning device and the locking switch are installed in the cab, the electromagnetic valve is connected with an operating handle, the warning device, the electricity-approaching early-warning device, the locking switch and the electromagnetic valve are electrically connected with the controller respectively through a control circuit, and the pilot pump is connected with the main pump and the electromagnetic valve. The electric-shock-resistant safety device of the excavator has the advantages that when a strong-electricity cable appears in a safe range of excavating operation, the electric-shock-resistant safety device will automatically force the excavator to stop, and therefore the safety of the excavator is greatly improved when the excavator operates.
Description
Technical field
The utility model relates to a kind of excavator electric shock-prevention safety device, belongs to the excavator technical field of safety devices.
Background technology
Excavator is a kind of engineering machinery commonly used, is widely used in earthwork construction, urban construction, occasions such as construction of water conservancy works.In recent years, excavator take place to get an electric shock in the operation process or the security incident of digging disconnected underground cable often has generation when urban construction and municipal construction, mainly contains two aspect reasons, and the one, be that the driver is negligent of observing when construction; The 2nd, underground cable moves towards complicated in the avenue, can't be accurately directed; The height of land cable is on the low side, is in substantially in the normal range of operation of excavator, and the strick precaution to accident brings great difficulty like this.
Summary of the invention
Problem at above-mentioned prior art existence, the utility model provides a kind of excavator electric shock-prevention safety device, in the time of in the forceful electric power cable appears at the digging operation safe range, safety device can force excavator to quit work automatically, thereby avoids excavator to get an electric shock when operation.
To achieve these goals, the technical solution adopted in the utility model is: a kind of excavator electric shock-prevention safety device, comprise the controller, pioneer pump, the main pump that are installed in the driver's cabin, also comprise the near electric precaution device that is installed in the excavator boom front portion, be installed in warning device, the locking switch in the driver's cabin and the electromagnetic valve that links to each other with operating grip, described warning device, nearly electric precaution device, locking switch and electromagnetic valve are respectively by control circuit and controller electrical connection; Pioneer pump links to each other with electromagnetic valve with main pump respectively.
Described warning device can adopt buzzer, avoids accident to take place by the sound prompting driver.
Set safe excavation scope by the parameter of adjusting nearly electric precaution device, excavating safely when determining digging operation does not have the forceful electric power cable to exist in the scope, when detecting the existing of forceful electric power cable, alarm activation, controller drives audible alarm, and guide's oil circuit is cut off in electromagnetic valve work at once simultaneously, the control crank sync fail of excavator, excavator quits work at once.Effectively protect the property safety of subscriber set and avoid occurring the electric shock security incident.After situation was found out, operator can be opened locking switch, and machine can recover operate as normal temporarily, and machine is retreated to the safety zone, and at this moment, warning device is still worked, and reminded operator to close locking switch, machine was placed again under the monitoring of electric shock-prevention safety device.
The beneficial effects of the utility model are: in the time of in the forceful electric power cable appears at the digging operation safe range, safety device can force excavator to quit work automatically, improves the safety of excavator when operation greatly.
Description of drawings
Fig. 1 is connection diagram of the present utility model.
Among the figure: 1, main pump, 2, pioneer pump, 3, controller, 4, warning device, 5, nearly electric precaution device, 6, locking switch, 7, electromagnetic valve.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1: the utility model comprises controller 3, pioneer pump 2, the main pump 1 that is installed in the driver's cabin, also comprise the near electric precaution device 5 that is installed in the excavator boom front portion, be installed in warning device 4, the locking switch 6 in the driver's cabin and the electromagnetic valve 7 that links to each other with operating grip, described warning device 4, nearly electric precaution device 5, locking switch 6 and electromagnetic valve 7 are respectively by control circuit and controller 3 electrical connections; Pioneer pump 2 links to each other with electromagnetic valve 7 with main pump 1 respectively.
During the excavator operate as normal, electromagnetic valve 7 is in off working state, and the oil of pioneer pump 2 flows to control crank by electromagnetic valve 7, and staff's operated pilot handle is finished the control to main valve, make the oil of main pump 1 flow to each executing agency, excavator is finished exercises under staff's operation.
Nearly electric precaution device 5 is installed in the excavator boom front portion, set safe excavation scope by the parameter of adjusting nearly electric precaution device, in case detect the existence of forceful electric power cable, nearly electric precaution device 5 can pass signal to controller 3, controller 3 drives electromagnetic valve 7 at once and cuts off the output of guide oil, the excavator handle quits work, and then excavator quits work; Simultaneously, the warning device 4 of controller 3 drive installations in driver's cabin, forceful electric power cable in the prompting staff workspace is taken care.
After the staff finds out concrete condition, can open locking switch 6, controller 3 interim control electromagnetic valves 7 are in off working state, the oil of pioneer pump 2 flows to control crank by electromagnetic valve 7, excavator driver's operation guide handle is finished the control to main valve, under support staff's help machine is sailed to the safety zone, warning device 4 still can send the prompting warning in this process.After confirming machine safety, close locking switch 6, machine places under the monitoring of electric shock-prevention safety device again, and warning device 4 finishes to report to the police.
Claims (2)
1. excavator electric shock-prevention safety device, comprise the controller (3), pioneer pump (2), the main pump (1) that are installed in the driver's cabin, it is characterized in that also comprising the near electric precaution device (5) that is installed in the excavator boom front portion, be installed in warning device (4), the locking switch (6) in the driver's cabin and the electromagnetic valve (7) that links to each other with operating grip, described warning device (4), nearly electric precaution device (5), locking switch (6) and electromagnetic valve (7) are respectively by control circuit and controller (3) electrical connection; Pioneer pump (2) links to each other with electromagnetic valve (7) with main pump (1) respectively.
2. a kind of excavator electric shock-prevention safety device as claimed in claim 1 is characterized in that described warning device (4) is buzzer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320108648 CN203145084U (en) | 2013-03-11 | 2013-03-11 | Electric-shock-resistant safety device of excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320108648 CN203145084U (en) | 2013-03-11 | 2013-03-11 | Electric-shock-resistant safety device of excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203145084U true CN203145084U (en) | 2013-08-21 |
Family
ID=48972624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320108648 Expired - Lifetime CN203145084U (en) | 2013-03-11 | 2013-03-11 | Electric-shock-resistant safety device of excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203145084U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106571008A (en) * | 2016-10-20 | 2017-04-19 | 国网山东省电力公司菏泽供电公司 | Excavator and work alarm system thereof |
| CN108560631A (en) * | 2018-04-18 | 2018-09-21 | 徐州徐工挖掘机械有限公司 | A kind of control method suitable for chassis of dredging machine anticollision |
| DE102019134401A1 (en) | 2018-12-13 | 2020-06-18 | Caterpillar Inc. | VALVE ARRANGEMENT WITH MECHANICAL AND ELECTROHYDRAULIC CONTROL |
-
2013
- 2013-03-11 CN CN 201320108648 patent/CN203145084U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106571008A (en) * | 2016-10-20 | 2017-04-19 | 国网山东省电力公司菏泽供电公司 | Excavator and work alarm system thereof |
| CN108560631A (en) * | 2018-04-18 | 2018-09-21 | 徐州徐工挖掘机械有限公司 | A kind of control method suitable for chassis of dredging machine anticollision |
| DE102019134401A1 (en) | 2018-12-13 | 2020-06-18 | Caterpillar Inc. | VALVE ARRANGEMENT WITH MECHANICAL AND ELECTROHYDRAULIC CONTROL |
| US11092171B2 (en) | 2018-12-13 | 2021-08-17 | Caterpillar Inc. | Valve assembly with mechanical and electro-hydraulic control |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130821 |